, 10, 2018

Sensors and Systems, N 10, 2018

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C O N T E N T AND A B S T R A C T S

 

 

 

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THEORY AND CONSTRUCTION PRINCIPLES OF SENSORS, DEVICES AND SYSTEMS

 

 

 

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Bobylev D. A.

IMPROVING OF THE NOISE IMMUNITY OF METHODS FOR MEASURING MULTICOMPONENT TWO-TERMINAL NETWORK PARAMETERS BY INSTANTANEOUS VALUES OF THE TRANSFER CHARACTERISTIC

Abstract: The method of suppression of periodic noise and polynomial trend for the measurement of multicomponent two-terminal networks parameters by instantaneous values of their transient response is proposed. The method is based on the replacement of instantaneous values by integral-weighted ones. The criteria for the synthesis of weight functions as well as the possibilities of the method and its limitations are presented.

Keywords: parameter, multicomponent two-terminal network, parameter, transient response, linear transformations, frequency response.

 

 

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Bogush M. V., Zacerklyanny`j O. V., Pikalev E. M.

PROCREATION OF DENSITY GAUGE BY APPLICATION OF THE METHOD OF FINITE ELEMENT

Abstract: The development and configuration of fluid density sensor, which epitomizes the primary converter of a frequency density meter of fluids and is embodied in a shape of a tuning fork, was accomplished by means of applying the finite element method. The density is determined by the frequency of tuning fork movements: it is being observed, enumerated and converted to the digital signal form by the microprocessor.

Keywords: fluid density sensor, piezo element, resonant frequency deviation, tuning fork parameters, temperature impact.

 

 

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Kolokolov A. S., Liubinsky I. A.

THE DEFINITION OF THE DEFECT PART USING ANALYSIS OF ACOUSTIC OSCILLATIONS CAUSED BY SHOCK EXCITATION

Abstract: A method for determining the defect of the part, based on the assessment of damping modes of acoustic oscillations caused by shock excitation.

Keywords: non-destructive testing, acoustic diagnostics, modal analysis, residual life.

 

 

 

 

 

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DESIGN AND PRODUCTION OF SENSORS, DEVICES AND SYSTEMS

 

 

 

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Golovkin M. A., Efremov A. A., Sysoev V. V.

AERODYNAMIC APPEARANCE AND ALGORITHM OF THE PERSPECTIVE ALL-ASPECT AIR PRESSURE PROBE

Abstract: An all-aspect air pressure probe for using on modern and perspective helicopters is presented. It provides the measurement of airspeed, altitude, angles of attack and slip, and other required flight parameters. The requirements to the aerodynamic shape of the all-aspect air probe are formulated. The proposed solution was to make the shape of head part similar to the polyhedron with a sufficiently large number of flat faces inscribed in the sphere. Such a shape allows to ensure the flow around the air probe to be close to the supercritical flow around the smooth sphere already at low velocities. This weakens the influence of the Reynolds number on the flow around the air probe and stabilized the position of the global flow separation line. The results of testing the air probe models in the wind tunnel at various Reynolds numbers are presented. Calibration characteristics of this air probe models are obtained. The mathematical model and the algorithm of the air probe are developed, the errors of the algorithm are estimated.

Keywords: air pressure probe, flight parameters, tests, calibration characteristics, Reynolds number, mathematical model, algorithm.

 

 

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Gerasimov S. I., Zubankov A. V., Kikeev V. A.

NUMERICAL AND EXPERIMENTAL ANALYSIS OF THE INDUCTION SENSORS ON THE ROCKET TRACK AT SPEEDS MORE THAN 6 M

Abstract: The results of the calculation and experimental study of induction sensors during testing of ammunition on the rocket track at speeds of missile trains more than 6M are presented. The law of electromagnetic induction was adopted as a physical phenomenon that makes up the working process. Using the known regularities of this phenomenon and having in the scientific literature experimental data, the working relations are obtained, allowing estimating the dependence of the magnetic field induction on the air gap.

Keywords: induction sensor, rocket track, rail guide, electromagnetic induction, average speed.

 

 

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Zavyalov P. S., Vlasov E. V., Guschina A. A., Sokolov E. V., Sartakov V. Yu.

OPTICAL AND ELECTRONIC SYSTEM OF CONTACTLESS CONTROL OF GEOMETRIC PARAMETERS OF ARMOR-PIERCING CORES AND BULLETS

Abstract: The paper presents the results of the development of control systems for geometric parameters and mass of armor-piercing cores and bullets of small arms ammunition. The principles and approaches laid down in the operation of these systems are described, their technical characteristics are presented and the results of their production tests are presented.

Keywords: technical vision system, armor-piercing core, bullet, firing accuracy, shadow image processing.

 

 

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Sokol-Kutylovskii O. L.

SOME RESULTS OF MEASURING A WEAK MAGNETIC FIELD BY A MAGNETOMODULATION CONVERTER WITH AN AMORPHOUS FERROMAGNETIC CORE

Abstract: Some results of measurement of geomagnetic noise by an autoparametric magnetomodulation converter with an amorphous ferromagnetic core are presented. The level of the intrinsic magnetic noise of the magnetomodulation converter in the low-frequency range was estimated. The possible limits for measuring the signal of a weak magnetic field in an unshielded volume in real time and in the mode of signal accumulation are considered.

Keywords: weak magnetic field sensor, magnetomodulation transducer, magnetic noise.

 

 

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Ocipov A. B.

RECORDS COMPACTION FOR INFORMATION FROM SENSORS OF WEATHER CONDITIONS IN THE MEMORY OF AN AUTONOMOUS RECORDER

Abstract: A method of compacting records in the memory of an autonomous recorder for climate measurements data is described. The difference in compaction methods, as well as the limits of application of the method, are considered.

Keywords: temperature and humidity sensors, flash memory, compaction algorithm.

 

 

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Belyaev M. M., Popov A. I.

FLOWMETER WITH VARIABLE STRUCTURE

Abstract: The article discusses the possibility of constructing a flowmeter having a tunable structure, depending on the measured flow rate, with the ranges separated by frequency boundaries.

Keywords: flowmeter, volumetric gas flow rate, reverse flow, measurement range, measurement error.

 

 

 

 

 

New devices

 

 

3-136 53

 

LOW FREQUENCY SIGNAL GENERATOR G3-136

 

 

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DIGITAL ONE-SEA STAND -

 

 

AP6013 56

 

PORTABLE MEASURING COMPLEX AP6013

 

 

 

 

 

 

CHRONICLE

 

 

 

16- , , , "CHIPEXPO-2018" 58

 

16-TH INTERNATIONAL EXHIBITION ON ELECTRONICS, COMPONENTS, TECHNOLOGIES AND EQUIPMENT "CHIPEXPO-2018"

 

 

TESTING & CONTROL2018 61

 

TESTING & CONTROL2018 EXHIBITION

 

 

XIII , 80- . . . 63

 

XIII ALL-RUSSIAN MEETING ON MANAGEMENT PROBLEMS, DEDICATED TO THE 80TH ANNIVERSARY OF V. A. TRAPEZNIKOV INSTITUTE OF CONTROL SCIENCES OF RAS